Valve-spring support for valve grinding



G. W. FLEMING.

VALVE SPRING SUPPORT FOR VLVE GRINDING.

APPLICATION FILED MAR. 25, 192x.

l.Reissued June 20,1922. 15,2388.

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UNITED STATES PATENT OFFICE.

GLEN W. FLEMING, 0F CLEVELAND, OHIO.

VALVE-SPRING SUPPORT FORl VALVE GRINDIN G.

Specification of Reissued Letters Patent. Reissued June 20, 1922, 0rigina1`No. 1,360,515, dated November 30, 1920, Serial No. 345,059, filed December 15, 1919.

Application for reissue ed March 25, 1921. Serial No. 455,589.

To all whom t may concern.'

Be it known that I, GLENW. FLEMING, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, -have invented certain new and useful Improvements in Valve-Spring Supports'for Valve Grinding, of which the following is a specication.

My invention relates to improvements in valve spring supports for valve grinding, and more particularly to a temporary support for valvesprings for supporting the latter when undercompression and it is dey sired to relieve the valve stem seat and valve seat cotter lpin for the detachment of the latter' for valve grinding either .in the cylinder or detachment and removal forl grinding by a tool.

The primary object of the invention is to provide a generally improved temporary valve spring support which may be readily inserted in and removed from the valved portion of an ordinary engine cylinderv as well as one which will be exceedinglysimple in construction, cheap of manufacture and efficient in use.

A still further object is the provision of a temporary valve spring support provided with an opening and seat portion adapted to initially receive and support the valve stem and the spring seat or diskmember of the valve, respectively, when such valve and valve spring have' been elevated by the push rod through themedinm of the cam and cam shaft, the improved support being of open formation to receive the adjacent abutting ends of the valve stem and pushrod and to afford ready access to the valve seat cotter pin for the ready insertion or removal of the latter in the act of replacing 0r removing the valve in the valve grinding operation.

With the above mentioned and other ends in view, the invention consists in thenovel construction, arrangement, and combination of parts, hereinafter ies'cribed, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in .the appended claims.

Referring to the drawings, forming a part of this specification, Fig. .1 is a sectional view ofthe valved portion of an ordinary engine cylinder with the valve spring and valve and its actuating mechanism in elevated or open position.

F ig. 2 a similar view illustrating the manner of holding up the valve head and compressing the valve spring, as likewise the manner of inserting the valve spring support for supporting the spring and relieving thel valve stem spring seat and valve'stem spring seat Cotter pin for. the detachment of the lat-ter for valve grinding. Y

F ig. 3, a similar view'with the spring support in seated position for valve grinding 1n a cylinder or the detachment or removal of the valve for valve grinding by a tool.

Fig. 4, a perspective view of the improved valve spring support, detached.

Fig.Y 5, a. top plan view of the blank before being folded and formed up to form a complete support.

Similar numerals of reference designate like parts throughout all the figures of the drawings. Y

For the purpose of illustrating the application and use of my improved temporary valve spring support in connection with the grinding of an ordinary valve, I have shown a sectional view of the valved portion of an ordinary engine cylinder l, provided with a valve port la, having a valve seat lb, said port being controlled by means of an ordinary `valve embodying a valve head 2, and a valve stem 2a, the valve 2, being-held in seated position by means of a valve spring 3 interposed between a stationary part of the cylinder casting and a valve springseat 4, the latter embodying a disk member provided with an opening loosely receiving the valve stemk 2a, and connected to the latter as against upward movement against the resistance of the spring by means of a valve spring seat retaining member 5, said retaining member 5, in the present instance, being .in the specific form of a Cotter pin.

The valve head 2, and valve stem 2a, are

moved upwardly against the resistance of the spring 3, by means of a push rod 6, slidably mounted ina stationary portion l, of the cylinder casting and adapted to ride upon and receive its motion from a cam 7a,

spring seat 4,' respectively, said support being also preferably provided' `with a base having a guidey or centeringslot 8c to receive andy contain the push rod 6, there being stop `portions 8d and thus centrally the support asr arvvhole with 'retthe push rod andspring. i l i l In order to aiord ready access tothe valve spring seat retaining member or cotter Fpin 5, the valve yspring*support is "pret ierablyfforined of an upper member? and lo'vverfgiinember or base portion,

i ing orniedyinfthepresent instance-,lby means of ibase fendy portions` supporting members 8f; y

Se, connected to side of Vforniir'ig" v the As a 'convenient means l the `latter vis pr'eleralolvy valve support 8;

1innfied"of a single blank 'of metal asfindicated 5; oithey dra`w`ings` and -bent upon predetermined ylines as indicated v by dotted lines'theends `oi the base end por` ,tions being curved as sho'vvn'in order'flto .pro-f vide 'tlife gui i' Sifwhe "nthervr said "besef end portions are. broughtr tovv ards each other and@v f-sp aced;

Lde or" centering slotfSC and'` stops eslifghtlvapartff i n As. a convenientnieansof insertingl the temporaryjvalve spring support, Ithefvalve` f vste Qlfjand valve' 2f, together with the push y fro'd ,i are preferably elevated byturning the "crank vshaft y.of thel engine whereby' the valve er is opened andv thefspring compressed 'to subg 'stantially the position indicated in Fig; `l,fo,

`ther` drawings, after vvhich'"'the valve and n 1 l valve steniinay bejl'uitheifelevated bywineans" *of-*a suitable'instrument,such as acotterpulley as indicated in port ymay guide :slot ic'pushed! over the upperv end of n p ythe push rod untilthefstop"portionsKdd cony tact withv said yrodg-f` and rthe valve spring l seat retaining member -5,` or `Cotter pin,` then being relieved 'of `the 4tensionv of the spring thevalive head and'stemk may `moved downwardly 'andthe valve seatv retaining f cot-ter pin rreniov'edvfor the grinding fof theA` yvalveeitl'ierin the engine cylinder, or 'for its removal` lfor "grinding by a, separate grind'- ingtool.` f

Upon the completion" ofl the valve v"grinding operation, the valve yseatv retaining mem ber inlay be returnedto its'fposition and thev l `valve may be elevatedA to substantially `the ,y g Fig. 2, afteruivhich thef` 'y valve spring `,support may beireadilv reposition shown in 'moved `a'iiclr'tlie i v alve vhead` and L stein returned f valveffspring lsupport a spring `receiving framehaving'ar pushv .rod

y which limit the inward move-r yment" of p the base portion position erence to the latter `be- 'nected tov the frame portion and vs faced be- `Whole is 'centered with f `spring receiving p frame `guide slot.

2, ofthe' drawings, sujchijelevation of the valve compressing the spring 3J afteijivhicli the'ivazlv'e springsup I be inserted thereunder, f and the f portion.`

per member being engaging portion for positioning the sup-l port `withl reference to they push rod and spring.` *i ,g 2. A valve spring support comprising a traine for receiving the end of spring, means for supporting said frame, and Y'guiding ineansconnected `to said; supportingy means adapted to engage the push rod and center the support with reference to said spring and rod. i f p 3. Avalve spring support comprisingv a `frame having depending legs yat the opposite sideswthereot, the ends of said. `legs be,- ing turned in [opposite each other and spaced centering guide portion stop portions. y

4E. A valve spring f support [comprising l a spring receiving frame, a basej'portion con low the same, said .basejportion aving `directions towards and provided with central guidingslot adaptedto' receive i the' n push'rod andy whereby theysupport as `a y5 A valve spring support comprisinga and a base-portion connected thereto and spaced beneath' said 'fi-aine.r said' baseI portion guiding slot adapted tol `engage a `push rod and centerthe spring' receiving frame with reference to said spring,v said base portion having stops at spring and push yrod.

6. A valve spring support provided'vvith p openings adapted to "initially yreceive the ad `jacent ends of Vthe valve spring'` and. push rod, said support having a dished head'adap'ted to receive and interlock valve spring when the latter is compressed by the elevation off'tlie valve stein.

7,.' A valve springsupporb comprising upper and lo-iver spaced members, said 'upper reference tothe valve y `having a central the innerendoi said central Withv; the seatA lof the I l memberfbeing `provided with a central peni ing adapted to receive the valve stein and a surrounding dished head portion conformed to andk lforming a 'seat *for the valve spring seat otthe valve stem, and saidlo'vver memc ber being provided with lan opening adapted to receive'tlie `valve stein push ifodf'" 8. A .valve spring support,

cotteripin and proidded' with a ysurrounding dislied' portion to receiveand forni `a seatfoi' 9; 'A "valve supportiformedi'ot a l single `blank or sheet metal bent'upon itselr` yiforining upperand' lovverrnembiers,' saidup-K l provided vvithk an ,openingy comprising i spaced; upper andA lower' vmembers,'said upper member lbeing p'rovicl'edfivith a centralfopen.- y y ing adapted. to rreceive the valve stern` andi" izo to receive the lower end of the valvey stem and the valve spring seat and spring seat pin and provided with a surrounding portion adapted to support the valve spring seat member, said upper member terminating in spaced side members having inwardly extending spaced base ends forming an intermediate pusher I'od receiving recess.

10. A valve spring support formed of a 10 single length of sheet metal bent into upper and lower members, said upper member being provided with an opening adapted to receive the lower end of the valve stem and the valve spring seat and spring seat retaining member, said upper member supportin the valve spring seat member and providecgl with spaced side members terminating in inwardly extending base tongues conjointly forming the lower member and providing an intermediate pusher rod receiving recess.

GLEN W. FLEMING. 

